Marine Binoculars for Sale

Defender offers a wide selection of the best binoculars for marine environments - all at discount prices!  Whether you are bird watching, hunting, on the water, or need to see better during night-time conditions, compare the different types of opticals above to select the binocular or monocular best suited to your vision needs.

Image Stabilized binoculars are excellent for birding or for stable vision in rough seas. These digital binoculars are well worth the price if you are serious about bird watching or are involved in search and rescue missions, especially on the open sea.

The first number in the listing is the amount of magnification; the second number is the size of the large (objective) lens of the binocular. A larger diameter objective lens will capture more light. More light means a brighter view, particularly in low-light conditions.

A 7x50 rating means that the magnification will be approximately 7 times that of a normal size image, while the 50 means that the large lens is 50 millimeters in diameter, which is the optimum size for a pair of marine binoculars that will be used on board a moving boat.

Image Stabilized binoculars ( Techno-Stabi, StabilEyes, etc.) typically have a higher first (magnification) number because they are capable of stabilizing the image, even though the magnification is higher. Also note that our Night Vision binoculars and monoculars ( or scopes ) have a much lower magnification factor than standard binoculars, but make up for it with their ability to see objects well in the dark.